Automatic railway-gate



1. SCHMITT.

AUTOMATIG' RAILWAY GATE. APPLICATION F-lLED JUNE 1, 1920.

2 SHEETSSHEET I.

INVENTOI? 4 TTORNE Y Patented Oct.19,1920

J. SCHMITT.

AUTOMATIC RAILWAY GATE.

APPLICATION man JUNE 1. 1920.

. T Sad/ unro? A TTOBNEY Patented Oct. 19, 1920f 2 SHEETSSHEET 2.

,3 UNITED STATES PA11E N g F CE+ JACOB SCHMITT, or REGENT, non'rn DAKOTA,

AUroMhrIc RAILWAY-GATE; I

To allwhom itmag concern:

Be it known that I, JACOB SoHMI'r'r, c tizen of the United States, and resident of Regent, in the county of Hettlnger and State of North Dakota, have invented certain new and useful Improvementsin Automatic Railway-Gates, of which the, following is a specification. j

This invention relates to automatlcj gates for railroads, and has for its main object the provision of a grade crossing" gate which will be normally open but which will, on the approach of a train, be automatically closedagainst pedestrianfand vehicular traffic until the train has passed, when the gate will again automatically open. w

The above and other objects wlll become apparent in the description'below, in which the same characters of reference refer tolike-named parts in the drawings.

Referring briefly to the drawings, Figure 1 is a plan view of a track equipped with my device at a crossing, the gates belng shown closed.

Fig. 2 is a view of the same with the gates open. Fig. 3 is anelevational view, of the same with the gates closed.

Fig. 4 is an elevational view taken transversely of the track showing one of the gates closed.

Fig. 5 is a diagrammatic view of the electrical auxiliary device used with the gates.

Fig. 6 is a plan View of the electromagnet with the cover removed.

Referring now in detail to the drawings, the numeral 1 represents the track rails, 2

and 3 one pair of swinging arms on one side of the gates, and 2 and 3? the other pair of swinging. arms on the other side of the gates, all of said arms being pivoted on supports 44. The free ends of the arms are attached by connecting rods 20, 21, 22, and 23, as shown, to cranks upon the shaft 4. The lower ends of said cranks, each pair on either side of the track, are rigid with shafts 4 and 9, respectively pivoted at 4 in the ties. Brackets 45 stand out from the shaft 4, and similar brackets 46 from the shaft 9.

Gates 5 and 6, on one side, are pivotally supported on supports 18 and 19, and gates 7 and 8, on the other side, are supported on supports 18 and 19. Heavy posts 10, 11, 12, and 13 are mounted on the free ends of the gates to give the same a greater moment I Specification of Letters Patent. Patented Oct 19, 1920, Application filed. Ji'une 1, 19ao ser a1-1vo. 385,447. i

.The latter are slidably attached to the brackets '45 and 46 which are forked, by means of pins 14 and 15 which slide between the prongs of said forked members, in slots 45 and 46, respectively. Y

useful in swinging the Now it is apparent that when the 'movlng train passes between either of the opposite arms 2 and 3, or 2 and 3 the arms are spread,' thus forcing the 20 and 21, or 22 and- 23, outward, whence the shafts 4 and 9 are rotated outward, carrying with them the brackets 45,-46,Irods. '14, 15, links 49, and

brackets 16 and 17, the latter being rotated about their pivots and thus closing the gates on both sides of the track. The lengths of the arms 2, 3, 2, and 3, have been greatly reduced in the drawings, but in practice they would be of relatively great length. Coiled springs are provided about the pivots 44 at 44 and additional springs about the gate hinges at 52, which restore the gates to their open positions after passage of the train.

I have also shown an'electrical means for operating and locking my device, in Figs. 5 and 6. A casing 25 contains electro-magnets 28 having cores 26 slidable therein, the latter projecting from the casing and being attached to one of the arms, as 2. A bracket 27 lies in said casing, the cores 26 passing therethrough, and coiled springs 29 surround said cores between said bracket and the magnet coils. A notch is provided in one of the cores, as 26, into which the pointed end of the slidable core 31 of the auxiliary electromagnet 30 is adapted to engage in order to lock the magnet 28 in its inactive position. An electrical source is shown at 35, wires 32 leading thereto through switches 33 and 34. lVhen the switch 33 is closed,'the magnets 28 are actuated to pull in the cores 26 and thus separate the arms 2, 3, or 2, 3, and thus open thegates. To look the gates in the open position, the core 31 enters the notch in the core 28. In order to open the gates, the switch 34 is closed, withdrawing the core 31 from the core 28, whence the springs 29 force the gates, together with the springs44 and 52, to close.

Instead of hand operation of said switches, they may be operated by suitably disposed trips in the paths of the wheels of the train adjacent the tracks. The locking magnet 30, however, may be hand operated by a master gateman who may be placed as Watch over a large number of crossings.

. I claim:

1. A device of the class described comprising, in combination, a pair of arms pivotally mounted adjacent the railswith the ends thereof normally lying in the path of a train, gates pivotally mounted on both sides of said rails, a shaft pivotallymounted in horizontal position on each side of said rails, the ends of said arms pivoted to said shafts, slotted brackets rigid to said shafts, links connecting said slotted bracketswith saidgates, means on said links adapted to slide in the slots of said slotted brackets, and means normally retaining said gates in closed position.

2. A device of the class described comprising, in combination, a pair of arms pivotally mounted adjacent the rails with the ends thereof normally lying in the pathof a train, gates pivotally mounted on both sides of said rails, a shaft pivotally mounted in horizontal position on each side of said rails,

day of May, A. D. 1920.

means connecting said arms pivotally with said shafts, slotted brackets rigid to said shafts, links connecting said slotted brackets with said gates, means on said link adapted to slide in the slots of said brackets, spring means tending to normally close said gates,

and auxiliary means for locking said gates in closed position.

3. A device of the class described comprising, in combination, a pair of arms pivotally mounted adjacent the rails with the ends thereof normally lying in the path of a train, spring means in the pivots of said arms urging said arms into said normal position, gates pivotally mounted on both sides of said rails, a shaft pivotally mounted on each side of said rails, means connecting said arms pivotally with said shafts, slotted brackets rigid to said shafts, links connecting saidslotted brackets to said gates, means on said links adapted to slide in the slots of said brackets, spring means in the pivots of said gates urging the same into closed position, and auxiliary means for locking said gates in closed position.

Signed at Regent in thecounty of Hettinger and Stateof North Dakota this 22nd JACOB SCHMITT. 

